Category | Description | 4540s | 4540s | 4440s | 4440s/ |
|
| (UMA) | (Disc) | (UMA) | 4441s |
|
|
|
|
| (Disc) |
|
|
|
|
|
|
| WWAN module | √ |
| √ |
|
|
|
|
|
|
|
| Keyboard | √ | √ | √ | √ |
|
|
|
|
|
|
7
Category | Description | 4540s | 4540s | 4440s | 4440s/ |
|
| (UMA) | (Disc) | (UMA) | 4441s |
|
|
|
|
| (Disc) |
|
|
|
|
|
|
| WWAN module | √ |
| √ |
|
|
|
|
|
|
|
| Keyboard | √ | √ | √ | √ |
|
|
|
|
|
|
7